It's been a while but I used to play with a Mod that didn't allow your skills to drop below a level once it was reached. For instance, if I trained Construction up to level 15 and on that level he had say 5,678 extra points towards the next level. The mod allowed your skill to deteriorate normally down to 15 but it would stop deterioration from occurring that'd lose your level.
I'm hoping the mod is still around. Thanks.
I'm pretty sure this is base-game, isn't it?
No, above level 10 your skills deteriorate over time.
Okay I found it. Thank god it's still being updated. Here it is in case some else goes looking.
Mad Skills https://ludeon.com/forums/index.php?topic=11148.0 (https://ludeon.com/forums/index.php?topic=11148.0)